Methods for generating and validating gaming machine subscription keys and securing subscription parameter data and jurisdiction files

1. A computer-implemented method of generating a subscription key which controls access to a gaming machine, the method implemented via at least one server comprising a controller, a memory and machine-readable code stored in the memory and executable by the controller, the method comprising the steps of:

receiving, from a user via at least one user input device to said at least one server, a first input at said controller for a subscription term and said machine-readable code causing said controller to output a first string based on the subscription term;

receiving, from said user via said at least one user input device to said at least one server, a second input at said controller for a subscription start date and said machine-readable code causing said controller to output a second string based on the subscription start date;

receiving a third input at said controller for a key generation date and time and said machine-readable code causing said controller to output a third string based on the key generation date and time;

generating a fourth input at said controller, said fourth input comprising a cyclical redundancy check value generated via a cyclical redundancy operation implemented by said controller using as value inputs thereto a MAC address of the gaming machine and at least one of the first input, the second input and an additional parameter, said machine-readable code causing said controller to output a fourth string based upon said fourth input;

generating, via said controller, said subscription key to control access to said gaming machine, said subscription key comprised of the first, second, third, and fourth strings, said subscription key comprising data readable by a processor of said gaming machine from which parameters of said subscription key, including said subscription start date, term, key generation date and cyclical redundancy check value are extractable;

receiving, at said gaming machine, said subscription key;

extracting, via the processor of the gaming machine, parameters from the subscription key, the parameters including the subscription start date, the subscription term, the key generation date, and the cyclical redundancy check;

generating, by the processor of the gaming machine, a local cyclical redundancy check value based on a MAC address of the gaming machine and one or more of the extracted parameters;

validating, by the processor of the gaming machine, the subscription key, the validating comprising comparing the local cyclical redundancy check value to the cyclical redundancy check value extracted from the subscription key; and

controlling, via the processor of the gaming machine, access to the operation of the gaming machine based upon the comparison of the cyclic redundancy check value extracted from the subscription key and the local CRC generated using the MAC address and the one or more parameters extracted from the subscription key.

2. The method of claim 1 , wherein the step of generating further comprises:

generating, via said controller, an initial subscription key comprised of the first, second, third, and fourth strings in an initial ordering of characters; and

generating, via said controller, said subscription key by scrambling the initial ordering of characters of the initial subscription key.

3. The method of claim 2 , wherein scrambling initial ordering of characters of the initial subscription key comprises selecting increments of two characters of the initial subscription key.

4. The method of claim 1 , wherein the first, second, third, and fourth strings are hexadecimal strings.

5. The method of claim 4 , wherein the first string is a four-digit hexadecimal string representing a number of days based on the subscription term.

6. The method of claim 4 , wherein the second string is a four-digit hexadecimal string representing a day of year and a two-digit year value based on the subscription start date.

7. The method of claim 4 , wherein the third string is a six-digit hexadecimal string representing a day of year followed by the hours and minutes of the key generation date and time.

8. The method of claim 4 , wherein the fourth string is a four-digit hexadecimal string that is further based on the subscription start date, the subscription term, and a pre-coded secret string to generate a cyclical redundancy check value.

9. The method of claim 1 further comprising:

storing the received subscription key a non-volatile random access memory of the gaming machine.

10. The method of claim 9 wherein the subscription key is stored in a first block of the non-volatile random access memory.

11. The method of claim 1 where the fourth input is received after the third input which is received after the second input which is received after the first input.

12. The method of claim 1 further comprising the step of validating said subscription key via said processor of said gaming machine, said processor configured to execute machine readable instructions fixed in a tangible medium.

13. The method of claim 1 wherein said subscription key is received at said gaming machine via user input to an input device of said gaming machine.

14. The method of claim 13 , where said input device comprises a touch-screen displaying a hexadecimal keypad.

15. The method of claim 1 , wherein said step of controlling access comprises preventing access to the operation of the gaming machine when said subscription key is not validated in said validating step.